SUMMARY. In this work the germination and seed moisture content was examinated by 22 clones of European larch (Larix decidua Mill.) originated from a well adapted culture of this species in Slovenia. The clones arefifxed in seed orchard (12 clones), living archive (7) and in clonal reserve (3 clones). Three groups with 11 clonal seed samples in total but different in clonal composition were stored each other over freezing temperature at three environments; wood room wardrobe, freezing room and refrigerator too for 28 month, while the other two groups also with 11 clones belong to fresh seed. Germinability was tested in Krstić germinator at 20—30°C after 21 days while the moisture seed content was estimated from the weight difference before and after drying of seed at 130°C. The results obtained were showed that germination percentage removed in high degree at two storage conditions; in wood room wardrobe with 53,7 and refrigerator, 42,7. In the freezing room, because of the freezing excluded, it was drastically diminished to 12,3 in relation to initial, 44,3. The temperature changes in summer period caused propagation of harmful insects of which was determined Megastigmus seitneri Hoffm., and destroyed a large amount of seed. Comparison with germination results in two groups of fresh seed (42,0 and 39,4) showed thet the stored seed in two environments was not worse in relation to fresh seed. Moisture seed content in a scale of 10,8 to 12,9 for three environments was not influenced on germination results. Research data are tabulated and graphically presented.
Key words: European larch; clonal samples; germinability; seed moisture; storage conditions |
